Virtio spec introduced a feature VIRTIO_NET_F_GUEST_HDRLEN which when
set implicates that device benefits from knowing the exact size
of the header. For compatibility, to signal to the device that
the header is reliable driver also needs to set this feature.
Without this feature set by driver, device has to figure
out the header size itself.
Quoting the original virtio spec:
"hdr_len is a hint to the device as to how much of the header needs to
be kept to copy into each packet"
"a hint" might not be clear for the reader what does it mean, if it is
"maybe like that" of "exactly like that". This feature just makes it
crystal clear and let the device count on the hdr_len being filled up
by the exact length of header.
Also note the spec already has following note about hdr_len:
"Due to various bugs in implementations, this field is not useful
as a guarantee of the transport header size."
Without this feature the device needs to parse the header in core
data path handling. Accurate information helps the device to eliminate
such header parsing and directly use the hardware accelerators
for GSO operation.
virtio_net_hdr_from_skb() fills up hdr_len to skb_headlen(skb).
The driver already complies to fill the correct value. Introduce the
feature and advertise it.
Note that virtio spec also includes following note for device
implementation:
"Caution should be taken by the implementation so as to prevent
a malicious driver from attacking the device by setting
an incorrect hdr_len."
There is a plan to support this feature in our emulated device.
A device of SolidRun offers this feature bit. They claim this feature
will save the device a few cycles for every GSO packet.
Link: https://docs.oasis-open.org/virtio/virtio/v1.2/cs01/virtio-v1.2-cs01.html#x1-230006x3
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Alvaro Karsz <alvaro.karsz@solid-run.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20230309094559.917857-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If no frames has been exchanged with a node for HSR_NODE_FORGET_TIME, the
node will be deleted from the node_db list. If a frame is sent to the node
after it is deleted, a netdev_err message for each slave interface is
produced. This should not happen with dan nodes because of supervision
frames, but can happen often with san nodes, which clutters the kernel
log. Since the hsr protocol does not support sans, this is only relevant
for the prp protocol.
Signed-off-by: Kristian Overskeid <koverskeid@gmail.com>
Link: https://lore.kernel.org/r/20230309092302.179586-1-koverskeid@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Lan8841 has 10 GPIOs and it has 2 events(EVENT_A and EVENT_B). It is
possible to assigned the 2 events to any of the GPIOs, but a GPIO can
have only 1 event at a time.
These events are used to generate periodic signals. It is possible to
configure the length, the start time and the period of the signal by
configuring the event.
Currently the SW uses only EVENT_A to generate the perout.
These events are generated by comparing the target time with the PHC
time. In case the PHC time is changed to a value bigger than the target
time + reload time, then it would generate only 1 event and then it
would stop because target time + reload time is small than PHC time.
Therefore it is required to change also the target time every time when
the PHC is changed. The same will apply also when the PHC time is
changed to a smaller value.
This was tested using:
testptp -L 6,2
testptp -p 1000000000 -w 200000000
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20230307214402.793057-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
make versioncheck reports the following:
./drivers/net/ethernet/qlogic/qede/qede.h: 10 linux/version.h not needed.
./drivers/net/ethernet/qlogic/qede/qede_ethtool.c: 7 linux/version.h not needed.
So remove linux/version.h from both of these files. Also remove
linux/compiler.h while at it as it is also not being used.
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230309225206.2473644-1-usama.anjum@collabora.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The bindings for the am65-cpsw driver use the name "serdes" to refer to
the Serdes PHY. Thus, update the name used for the Serdes PHY within the
am65_cpsw_init_serdes_phy() function from "serdes-phy" to "serdes".
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Update bindings to include Serdes PHY as an optional PHY, in addition to
the existing CPSW MAC's PHY. The CPSW MAC's PHY is required while the
Serdes PHY is optional. The Serdes PHY handle has to be provided only
when the Serdes is being configured in a Single-Link protocol. Using the
name "serdes-phy" to represent the Serdes PHY handle, the am65-cpsw-nuss
driver can obtain the Serdes PHY and request the Serdes to be
configured.
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Johannes Berg says:
====================
wireless-next patches for 6.4
Major changes:
cfg80211
* 6 GHz improvements
* HW timestamping support
* support for randomized auth/deauth TA for PASN privacy
(also for mac80211)
mac80211
* radiotap TLV and EHT support for the iwlwifi sniffer
* HW timestamping support
* per-link debugfs for multi-link
brcmfmac
* support for Apple (M1 Pro/Max) devices
iwlwifi
* support for a few new devices
* EHT sniffer support
rtw88
* better support for some SDIO devices
(e.g. MAC address from efuse)
rtw89
* HW scan support for 8852b
* better support for 6 GHz scanning
* tag 'wireless-next-2023-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (84 commits)
wifi: iwlwifi: mvm: fix EOF bit reporting
wifi: iwlwifi: Do not include radiotap EHT user info if not needed
wifi: iwlwifi: mvm: add EHT RU allocation to radiotap
wifi: iwlwifi: Update logs for yoyo reset sw changes
wifi: iwlwifi: mvm: clean up duplicated defines
wifi: iwlwifi: rs-fw: break out for unsupported bandwidth
wifi: iwlwifi: Add support for B step of BnJ-Fm4
wifi: iwlwifi: mvm: make flush code a bit clearer
wifi: iwlwifi: mvm: avoid UB shift of snif_queue
wifi: iwlwifi: mvm: add primary 80 known for EHT radiotap
wifi: iwlwifi: mvm: parse FW frame metadata for EHT sniffer mode
wifi: iwlwifi: mvm: decode USIG_B1_B7 RU to nl80211 RU width
wifi: iwlwifi: mvm: rename define to generic name
wifi: iwlwifi: mvm: allow Microsoft to use TAS
wifi: iwlwifi: mvm: add all EHT based on data0 info from HW
wifi: iwlwifi: mvm: add EHT radiotap info based on rate_n_flags
wifi: iwlwifi: mvm: add an helper function radiotap TLVs
wifi: radiotap: separate vendor TLV into header/content
wifi: iwlwifi: reduce verbosity of some logging events
wifi: iwlwifi: Adding the code to get RF name for MsP device
...
====================
Link: https://lore.kernel.org/r/20230310120159.36518-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Russell King says:
====================
Rework SFP A2 access conditionals
This series reworks the SFP A2 (diagnostics and control) access so we
don't end up testing a variable number of conditions in several places.
This also resolves a minor issue where we may have a module indicating
that it is not SFF8472 compliant, doesn't implement A2, but fails to
set the enhanced option byte to zero, leading to accesses to the A2
page that fail.
The first patch adds a new flag "have_a2" which indicates whether we
should be accessing the A2 page, and uses this for hwmon. The
conditions are kept the same.
The second patch extends the check for soft-state polling and control
by using this "have_a2" flag (which effectively augments the check to
include some level of SFF8472 compliance.)
====================
Link: https://lore.kernel.org/r/ZAoBnqGBnIZzLwpV@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The soft state bits are stored in the A2h memory space, and require
SFF-8472 compliance. This is what our have_a2 flag tells us, so use
this to indicate whether we should attempt to use the soft signals.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The hwmon code wants to know when it is safe to access the A2h data
stored in a separate address. We indicate that this is present when
we have SFF-8472 compliance and the lack of an address-change
sequence.,
The same conditions are also true if we want to access other controls
and status in the A2h address. So let's make a flag to indicate whether
we can access it, instead of repeating the conditions throughout the
code.
For now, only convert the hwmon code.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Gal Pressman says:
====================
Couple of minor improvements to build_skb variants
First patch replaces open-coded occurrences of
skb_propagate_pfmemalloc() in build_skb() and build_skb_around().
The secnod patch adds a likely() to the skb allocation in build_skb().
====================
Link: https://lore.kernel.org/r/20230308131720.2103611-1-gal@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Similarly to napi_build_skb(), it is likely the skb allocation in
build_skb() succeeded. frag_size != 0 is also likely, as stated in
__build_skb_around().
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use skb_propagate_pfmemalloc() in build_skb()/build_skb_around() instead
of open-coding it.
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Horatiu Vultur says:
====================
net: lan966x: Add support for IS1 VCAP
Provide the Ingress Stage 1 (IS1) VCAP (Versatile Content-Aware
Processor) support for the Lan966x platform.
The IS1 VCAP has 3 lookups and they are accessible with a TC chain id:
- chain 1000000: IS1 Lookup 0
- chain 1100000: IS1 Lookup 1
- chain 1200000: IS1 Lookup 2
The IS1 is capable of different actions like rewrite VLAN tags, change
priority of the frames, police the traffic, etc. These features will be
added at a later point.
The IS1 currently implements the action that allows setting the value
of a PAG (Policy Association Group) key field in the frame metadata and
this can be used for matching in an IS2 VCAP rule. In this way a rule in
IS0 VCAP can be linked to rules in the IS2 VCAP. The linking is exposed
by using the TC "goto chain" action with an offset from the IS2 chain ids.
For example "goto chain 8000001" will use a PAG value of 1 to chain to a
rule in IS2 lookup 0.
====================
Link: https://lore.kernel.org/r/20230307220929.834219-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
IS1 VCAP has it's own list of supported ethernet protocol types which is
different than the IS2 VCAP. Therefore separate the list of known
protocol types based on the VCAP type.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Allow rules to be chained between IS1 VCAP and IS2 VCAP. Chaining
between IS1 lookups or between IS2 lookups are not supported by the
hardware.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add IS1 VCAP port keyset configuration for lan966x and also update debug
fs support to show the keyset configuration.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Provide IS1 (ingress stage 1) VCAP model for lan966x.
This provides classification actions for lan966x.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
NVMEM layouts are no longer registered early, and thus may not yet be
available when Ethernet drivers (or any other consumer) probe, leading
to possible probe deferrals errors. Forward the error code if this
happens. All other errors being discarded, the driver will eventually
use a random MAC address if no other source was considered valid (no
functional change on this regard).
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Marcin Wojtas <mw@semihalf.com>
Link: https://lore.kernel.org/r/20230307192927.512757-1-miquel.raynal@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The filename "wangxun" sorts between "intel" and "xscale", but
xscale/Kconfig contains "Intel XScale" prompts, so Wangxun ends up in the
wrong place in the config front-ends.
Move wangxun/Kconfig so the Wangxun devices appear in order in the user
interface.
Fixes: 3ce7547e5b ("net: txgbe: Add build support for txgbe")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230307221051.890135-1-helgaas@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2023-03-07 (igc)
This series contains updates to igc driver only.
Muhammad adds tracking and reporting of QBV config errors.
Tan Tee adds support for configuring max SDU for each Tx queue.
Sasha removes check for alternate media as only one media type is
supported.
* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
igc: Clean up and optimize watchdog task
igc: offload queue max SDU from tc-taprio
igc: Add qbv_config_change_errors counter
====================
Link: https://lore.kernel.org/r/20230307221332.3997881-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Florian Westphal says:
====================
Netfilter updates for net-next
1. nf_tables 'brouting' support, from Sriram Yagnaraman.
2. Update bridge netfilter and ovs conntrack helpers to handle
IPv6 Jumbo packets properly, i.e. fetch the packet length
from hop-by-hop extension header, from Xin Long.
This comes with a test BIG TCP test case, added to
tools/testing/selftests/net/.
3. Fix spelling and indentation in conntrack, from Jeremy Sowden.
* 'main' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: nat: fix indentation of function arguments
netfilter: conntrack: fix typo
selftests: add a selftest for big tcp
netfilter: use nf_ip6_check_hbh_len in nf_ct_skb_network_trim
netfilter: move br_nf_check_hbh_len to utils
netfilter: bridge: move pskb_trim_rcsum out of br_nf_check_hbh_len
netfilter: bridge: check len before accessing more nh data
netfilter: bridge: call pskb_may_pull in br_nf_check_hbh_len
netfilter: bridge: introduce broute meta statement
====================
Link: https://lore.kernel.org/r/20230308193033.13965-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since commit 8b41fc4454 ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.
So remove it in the files in this commit, none of which can be built as
modules.
Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20230308121230.5354-1-nick.alcock@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since commit 8b41fc4454 ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.
So remove it in the files in this commit, none of which can be built as
modules.
Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Cc: Jeremy Kerr <jk@codeconstruct.com.au>
Cc: Matt Johnston <matt@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230308121230.5354-2-nick.alcock@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter and bpf.
Current release - regressions:
- core: avoid skb end_offset change in __skb_unclone_keeptruesize()
- sched:
- act_connmark: handle errno on tcf_idr_check_alloc
- flower: fix fl_change() error recovery path
- ieee802154: prevent user from crashing the host
Current release - new code bugs:
- eth: bnxt_en: fix the double free during device removal
- tools: ynl:
- fix enum-as-flags in the generic CLI
- fully inherit attrs in subsets
- re-license uniformly under GPL-2.0 or BSD-3-clause
Previous releases - regressions:
- core: use indirect calls helpers for sk_exit_memory_pressure()
- tls:
- fix return value for async crypto
- avoid hanging tasks on the tx_lock
- eth: ice: copy last block omitted in ice_get_module_eeprom()
Previous releases - always broken:
- core: avoid double iput when sock_alloc_file fails
- af_unix: fix struct pid leaks in OOB support
- tls:
- fix possible race condition
- fix device-offloaded sendpage straddling records
- bpf:
- sockmap: fix an infinite loop error
- test_run: fix &xdp_frame misplacement for LIVE_FRAMES
- fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR
- netfilter: tproxy: fix deadlock due to missing BH disable
- phylib: get rid of unnecessary locking
- eth: bgmac: fix *initial* chip reset to support BCM5358
- eth: nfp: fix csum for ipsec offload
- eth: mtk_eth_soc: fix RX data corruption issue
Misc:
- usb: qmi_wwan: add telit 0x1080 composition"
* tag 'net-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (64 commits)
tools: ynl: fix enum-as-flags in the generic CLI
tools: ynl: move the enum classes to shared code
net: avoid double iput when sock_alloc_file fails
af_unix: fix struct pid leaks in OOB support
eth: fealnx: bring back this old driver
net: dsa: mt7530: permit port 5 to work without port 6 on MT7621 SoC
net: microchip: sparx5: fix deletion of existing DSCP mappings
octeontx2-af: Unlock contexts in the queue context cache in case of fault detection
net/smc: fix fallback failed while sendmsg with fastopen
ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause
mailmap: update entries for Stephen Hemminger
mailmap: add entry for Maxim Mikityanskiy
nfc: change order inside nfc_se_io error path
ethernet: ice: avoid gcc-9 integer overflow warning
ice: don't ignore return codes in VSI related code
ice: Fix DSCP PFC TLV creation
net: usb: qmi_wwan: add Telit 0x1080 composition
net: usb: cdc_mbim: avoid altsetting toggling for Telit FE990
netfilter: conntrack: adopt safer max chain length
net: tls: fix device-offloaded sendpage straddling records
...
Pull HID fixes from Benjamin Tissoires:
- fix potential out of bound write of zeroes in HID core with a
specially crafted uhid device (Lee Jones)
- fix potential use-after-free in work function in intel-ish-hid (Reka
Norman)
- selftests config fixes (Benjamin Tissoires)
- few device small fixes and support
* tag 'for-linus-2023030901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: intel-ish-hid: ipc: Fix potential use-after-free in work function
HID: logitech-hidpp: Add support for Logitech MX Master 3S mouse
HID: cp2112: Fix driver not registering GPIO IRQ chip as threaded
selftest: hid: fix hid_bpf not set in config
HID: uhid: Over-ride the default maximum data buffer value with our own
HID: core: Provide new max_buffer_size attribute to over-ride the default
Pull m68k fixes from Geert Uytterhoeven:
- Fix systems with memory at end of 32-bit address space
- Fix initrd on systems where memory does not start at address zero
- Fix 68030 handling of bus errors for addresses in exception tables
* tag 'm68k-for-v6.3-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Only force 030 bus error if PC not in exception table
m68k: mm: Move initrd phys_to_virt handling after paging_init()
m68k: mm: Fix systems with memory at end of 32-bit address space
We fetch %SR value from sigframe; it might have been modified by signal
handler, so we can't trust it with any bits that are not modifiable in
user mode.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rich Felker <dalias@libc.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2023-03-07 (ice)
This series contains updates to ice driver only.
Dave removes masking from pfcena field as it was incorrectly preventing
valid traffic classes from being enabled.
Michal resolves various smatch issues such as not propagating error
codes and returning 0 explicitly.
Arnd Bergmann resolves gcc-9 warning for integer overflow.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ethernet: ice: avoid gcc-9 integer overflow warning
ice: don't ignore return codes in VSI related code
ice: Fix DSCP PFC TLV creation
====================
Link: https://lore.kernel.org/r/20230307220714.3997294-1-anthony.l.nguyen@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Xin Long says:
====================
sctp: add another two stream schedulers
All SCTP stream schedulers are defined in rfc8260#section-3,
First-Come First-Served, Round-Robin and Priority-Based
Schedulers are already added in kernel.
This patchset adds another two schedulers: Fair Capacity
Scheduler and Weighted Fair Queueing Scheduler.
Note that the left one "Round-Robin Scheduler per Packet"
Scheduler is not implemented by this patch, as it's still
intrusive to be added in the current SCTP kernel code.
====================
Link: https://lore.kernel.org/r/cover.1678224012.git.lucien.xin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
As it says in rfc8260#section-3.6 about the weighted fair queueing
scheduler:
A Weighted Fair Queueing scheduler between the streams is used. The
weight is configurable per outgoing SCTP stream. This scheduler
considers the lengths of the messages of each stream and schedules
them in a specific way to use the capacity according to the given
weights. If the weight of stream S1 is n times the weight of stream
S2, the scheduler should assign to stream S1 n times the capacity it
assigns to stream S2. The details are implementation dependent.
Interleaving user messages allows for a better realization of the
capacity usage according to the given weights.
This patch adds Weighted Fair Queueing Scheduler actually based on
the code of Fair Capacity Scheduler by adding fc_weight into struct
sctp_stream_out_ext and taking it into account when sorting stream->
fc_list in sctp_sched_fc_sched() and sctp_sched_fc_dequeue_done().
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
As it says in rfc8260#section-3.5 about the fair capacity scheduler:
A fair capacity distribution between the streams is used. This
scheduler considers the lengths of the messages of each stream and
schedules them in a specific way to maintain an equal capacity for
all streams. The details are implementation dependent. interleaving
user messages allows for a better realization of the fair capacity
usage.
This patch adds Fair Capacity Scheduler based on the foundations added
by commit 5bbbbe32a4 ("sctp: introduce stream scheduler foundations"):
A fc_list and a fc_length are added into struct sctp_stream_out_ext and
a fc_list is added into struct sctp_stream. In .enqueue, when there are
chunks enqueued into a stream, this stream will be linked into stream->
fc_list by its fc_list ordered by its fc_length. In .dequeue, it always
picks up the 1st skb from stream->fc_list. In .dequeue_done, fc_length
is increased by chunk's len and update its location in stream->fc_list
according to the its new fc_length.
Note that when the new fc_length overflows in .dequeue_done, instead of
resetting all fc_lengths to 0, we only reduced them by U32_MAX / 4 to
avoid a moment of imbalance in the scheduling, as Marcelo suggested.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Russell King says:
====================
Various mtk_eth_soc cleanups
Here are a number of patches that do a bit of cleanup to mtk_eth_soc.
The first patch cleans up mtk_gmac0_rgmii_adjust(), which is the
troublesome function preventing the driver becoming a post-March2020
phylink driver. It doesn't solve that problem, merely makes the code
easier to follow by getting rid of repeated tenary operators.
The second patch moves the check for DDR2 memory to the initialisation
of phylink's supported_interfaces - if TRGMII is not possible for some
reason, we should not be erroring out in phylink MAC operations when
that can be determined prior to phylink creation.
The third patch removes checks from mtk_mac_config() that are done
when initialising supported_interfaces - phylink will not call
mtk_mac_config() with an interface that was not marked as supported,
so these checks are redundant.
The last patch removes the remaining vestiges of REVMII and RMII
support, which appears to be entirely unused.
These shouldn't conflict with Daniel's patch set, but if they do I
will rework as appropriate.
====================
Link: https://lore.kernel.org/r/ZAdj9qUXcHUsK7Gt@shell.armlinux.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
